/Engine/Plugins/Experimental/TextureMediaPlayer/Source/TextureMediaPlayer/Public/ITextureMediaPlayerModule.h
Opens the player and returns the interface which you can then pass to Texture so the player can receive frames from Texture.
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [ITextureMediaPlayer](API\Plugins\TextureMediaPlayer\ITextureMediaPlayer), ESPMode::ThreadSafe > OpenPlayer ( [UMediaPlayer](API\Runtime\MediaAssets\UMediaPlayer) * MediaPlayer )